John Mills and I planned ahead of time to capture the Trifid Nebula (M20) with roughly the same field of view configuration and framing/rotation so that we could combine our data later. John took the Hydrogen Alpha from his backyard in Sydney (total 1.6 hours) and I took the colour data from mine in Byron Bay (total 1.5 hours). PixInsight helped align and process the stacks separately which were merged in Photoshop. I'm really quite happy with how it turned out! I was shooting with Celestron 9.25" Edge HD / F6.3 reducer / QHY12 Colour CCD and John was shooting with William Optics 110T / +Atik Cameras One Mono w/ Astronomik Ha filter.
Higher Resolution :
http://deography.com/wp-content/uplo...lan-Collab.jpg
I've been playing around a fair bit lately with this "LRGB" method combining a mono camera's Ha data with a colour camera's one-shot RGB data. It's a pretty quick and dirty way to get an image done in true colour without have to do every R G B channel as a separate image run. And if you don't have 2 cameras with similar chip sizes you can always ask a friend and join forces like we did here
